286 



AQUATIC PHYCOMYCETES 





Fig. 18. Phlyctidiaceae 



A-E. Rhizophydium hyperparasiticum Karling, parasitic on various phy- 

 comycetes: A, thalli and sporangia on Septochytrium; B, parasitized sporan- 

 gium of a chytrid; C, chytrid sporangium heavily parasitized; D, Septochy- 

 trium sporangium heavily parasitized; E, zoospores of parasite. F. Rhizo- 

 phydium conicum Karling, sporangium on Netrium sp. G. Phlyctochytrium 

 nematodeae Karling, thalli and sporangia on nematode egg. H. Rhizophydium 

 apiculatum Karling on protozoan. I-J. Rhizophydium keratinophilum Karling 

 on hair: /, nearly mature sporangium; 7, germinated resting spore. 



(A-F, H, Karling, 1946c; G, Karling, 1946b; /-/, Karling, 1946d) 



